Surface-drainage outlet for swimming pools and the like



SUBFACEDRMNAGE OUTLETv FOR SWIMMING FOOLS AND THE UKE' FILED JuLva, 1922.

Jan. 16, 1923.

' I- .s.II/|URPHY.A

. SURFACE DRAINAGE 0 ET FOR SWIMMING FOOLS AND THE LIKE.

FILED IuLY a, 1922. 2 sHEzs-sIIEE 2.

Patented Jani 1416, 19,23, p Y y UNITED gs'mras ARCHIBRLD s. MURPHY,

or RoANoRE, VIRGINIA.

SURFACE-DRAINAGE OUTLET roR SWIMMING Poorts AND T'H LIKE.

Application led July `3,

consists mainly, of la pair of water-tight chambers, one within the other the outer chamber having a pluralityA of openings whose lower edge is slightly above the top line Aof the inner chamber. l

The advantages of such an outlet as my invention embodies are, irst. the drainage of the scum. and second the increased surface flow attained.

A typical drainage outlet otmy invention is shown onk the accompanying drawings. in

which Fig. 1, is a vertical cross section through such an outlet. Fig. 2, .is an en' larged scale drawing of the restricted throat opening and Fig. 3, is a horizontal cross-section taken on the line A-A Fig. l.

In Fig. 1,-.-1, 1 are the exterior walls of the outer watertight chamber 2, 2,- being the throat discharge inlets at the bottom,v8, 3 Y

1922. serial No. 572,633.

being the main outlets for surface-drainage? 4, are they walls'ofthe inner chamber, whichtogether with walls 1,1.for'm the supplementarywater space 5,5. At 6, is shown yV f the discharge lip of -the inner chamber, which is slightly lower than the openings 35"", 3. Ata, 3a, are shown therestrictedthroats of the water spaces or channels, 5, 5. At "i,`

is shown the inner spillway chamber,'having .40 1 y i at its bottom the ldrainoutlet 8. At 19 is shown a divingplatform or any suitable'or convenient top-structure. At 10, is indicated the bottom pool outlet, through the pipe l0,v

controlled by the valve'll, with an eXtensible 45 i stem 12, terminating in the handwheellf Similar numerals refer-to similar partson the several views; 7

I claim:

In a surface4 drainage outlet, the combinai `50 tion of a pair vof concentric waters-tight. chambers,y having a-waterspace between the walls of the irst and second chambers', openings at thebottomy of theouter chamber,

vopenings at the'top Vof the outer chamber, 551r and the top edge of the inner chamber at a u slightly lower distance below the'lower' edge 'of the upper opening in the outer chamber.

' ARCHIBALD. S.vMURPI-IY, Witnesses:

I J; 'E'. PATTERSON,

RUTRQUGH, 

